PUZZLET 005

A Cubic Equation

x^{ 3}-
x^{2 } - x
- 1 = 0 |
This
simple cubic equation is the subject of the Puzzlet |

This is a very simple Puzzlet: find the root of the equation shown above. To make it even simpler, I can tell you the answer is somewhere in the region of 2. However, just to make it a little more interesting, you’re asked to work to 10 decimal places of accuracy …

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Last Updated: January 7th, 2010.